Improvement in wagon-jacks



"F.A.CLELL AND. WAGON JACKS.

No.181,4=10. Patented Aug.22,1876

A C @M WITNESSES INVENTOR ATTORNEYS NJETHS. PHQTO-LITHOGRAPHEH, WAslyNGTON, D. C.

UNITED STATES PATENT OFFICE.

FRED A. OLELAND, OF CASSADAGA, NEW YORK.

IMPROVEMENT IN WAGON-JACKSI Spccificationforming part of Letters Patent No. 181,410, dated August 22, 1876; application filed April 24, 1875.

To all whom it may concern:

Be it known that I, FRED A. CLELAND, of Gassadaga, in the county of Chautauqua and State of New York, have invented a new and valuable Improvement in Wagon-Jacks; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a 'part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a representationa washer, b, is employed to secure steadiness and durability. To the upper end of the stem A is riveted the loop 0, the rivet 01 serving also to secure the lever (l to the standard, forming its fulcrum. D represents the risebar, provided at its lower end with a loop, 0, which is riveted thereto, the rivet d serving also to connect therewith the lower end of the link-connection E, the upper end of which is connected with the end of the curved short arm 0 ofthe lever G. The loop 0 is designed to embrace the main stem A of the jack. The upper portion of the rise-bar is serrated on its outside edge. G indicates an adjustable bracket, having a slot, 9, whereby it -is slippedupon the rise-bar D, the upper end of the latter being slightly headed to prevent the bracket from being readily detached. To the under side of the bracket-shelf is secured, by welding or otherwise, a brace-pawl, h, the end of which engages with the serrations of the rise-bar.

In theoperation of the jack the handle is brought into the raised position, and the bracket, lowered on the rise-bar, is, then adjusted upward under the wagon-axle or any object to be lifted. Then the lever or handle is lowered or pressed downward, the curved short arm and link-connection drawing upward therise-bar with the bracket, which is securely fixed in the position where it Was adjusted by the weight of the lift, which strengthens the engagement of the bracepawl h with the notch of the rise-bar. The jack is locked, and the lever prevented from being reversed by the weight upon the bracket when said lever is depressed to its lowest posi- 1 tion, bringing the end of the curved portion of the lever and the link-connection back of the fulcrum. All the parts of this jack are made of metal except the base, which is, preferably, constructed of some hard wood.

I am aware that a slotted stand in which a toothed sliding lift-bar provided with a slidepiece working in connection with a lever pivoted to a lug on the slotted standard, and connected by a link with said standard, as shown in Letters Patent granted to J. F. Enimert, dated September 17, 1867, No. 68,970, is not new, and I therefore lay no claim to such devices, which are incapable of locking the jack when the latter is raised, as is the casein my invention. What I claim as new, and desire to secure by Letters Patent, is

In a carriage-jack, the lever O pivoted to the standard A, having its arm at extending in curved form beyond the fulcrum, the rise- I ba-r D, and the link-bar E, adapted to vibrate past said fulcrum to fix the lever when depressed, as set forth.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

FRED A. GLELAND. Witnesses:

JAMES M. BEEBE, J OHN O. BEEBE. 

